(19)

(11)

EP 3 894 233 A1

(12)

(43) Date of publication: 20.10.2021 Bulletin 2021/42 (21) Application number: 19798287.9 (22) Date of filing: 05.11.2019

(51) International Patent Classification (IPC):  B42D 25/405(2014.01) (52) Cooperative Patent Classification (CPC): B42D 25/445; B42D 25/373; B42D 25/29; B42D 25/405; B42D 25/44; B41M 3/14; B41M 3/148; B41M 5/24 (86) International application number: PCT/EP2019/080200 (87) International publication number: WO 2020/099177 (22.05.2020 Gazette 2020/21)

(84) Designated Contracting States: AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR Designated Extension States: BA ME Designated Validation States: KH MA MD TN (30) Priority: 12.11.2018 GB 201818362 (71) Applicant: University of West Bohemia 30100 Pilsen (CZ)	(72) Inventors: KUCERA, Martin 33601 Blovice (CZ) LANG, Vladislav 323 00 Plzen (CZ) (74) Representative: Cerych, Ondrej  Narodni 58/32 110 00 Prague 1 110 00 Prague 1 (CZ)